Home / 3,835.44-5,756.40-2,105.28

Finding the Fourth Proportional to 3,835.44, 5,756.40 and 2,105.28

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Solution

The fourth proportional to 3,835.44, 5,756.40 and 2,105.28 is: 3,159.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,835.44 : 5,756.40 = 2,105.28 : x
  2. Step 2: Convert to fraction form
    3,835.44/5,756.40 = 2,105.28/x
  3. Step 3: Cross multiply
    3,835.44x = 5,756.40 × 2,105.28
  4. Step 4: Simplify right side
    3,835.44x = 12,118,833.79
  5. Step 5: Solve for x
    x = 12,118,833.79/3,835.44
  6. Step 6: Final answer
    x = 3,159.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.